Improvement in water-tube steam-generators



Patented Sept. 2,1879.

June

N. PETERS. PHOTO-L THDGRAP WASHINGTON D C UNITED STATES PATENT OFFICE,

NELSON GOOMBS, O13 TITUSVILLE, PENNSYLVANIA.

. IMPROVEMENT lNWATER-TUBE STEAM-GENERATORS.

Specification forming part of Letters Patent No. 219,072, datedSeptember 2, 1879; application filed January 31, 1879.

To all whom it may concern:

. Be it known that I, NELSON (JooMBs, of Titusville, in the county ofCrawford and State of Pennsylvania, have inventedcertain new and usefulImprovements in Water-Tube Steam-Generators; andI do hereby declare thatthe following is a full, clear, and exact description of the invention,which will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,which form a part of this specification, and in which-V Figure 1 isaperspective view, parts being broken away to show the construction; andFig. 2 is a longitudinal sectional view.

. Corresponding parts are denoted by like letters of reference.

This invention relates to steam-generators; and it consists in certainimprovements in the construction of the same, which will be hereinaftermore fully described, and particularly pointed out in the claim.

In the drawings, A represents the arch or casing, from the top of which,B, a removable cylindrical coal or fuel magazine, 0, projects downwardlynearly to the fire-pot D, at the bottom of which is an invertedcone-shaped shakin g or tilting grate, E, which may be operated. throughdoor F of the ash-box G.

H is the water and steam reservoir, which is arranged. verticallyparallel to the coalmagazine,and.is connected at its base by atube-nipple, I, to the plate or section J, in which the fire-pot islocated, under which plate or section, and connected to it, extendingalong under it to and around the fire-pot, is a water cell or heater, K,in which all the cold water is first forced to supply the reservoir,

and in circulating around the fire-pot protects it from burning out, theinside of the cell being the fire-pot.

L M are spiral water-coil-tube steam-generators. The coils are arrangeddirectly over the fire-pot. The lower ends extend along on the top ofthe plate or' section J to near the bottom of the reservoir, and areconnected to it, or may be connected to the plate or section on whichthey rest. In like manner the upper ends extend to the reservoir, andare connected to it at or above the water-line, near the top of thereservoir. Additional coils may be similarly arranged to increase thecapacity of the device for generating steam, each additional one beingarranged around the inner coils.

In operation the water passes from the cell or heater K, up through thenipple, into the reservoir and lower ends of the coils L M, in which itcirculates rapidly upward. While traversing the coils it is heated andconverted into steam, which discharges from the upper ends into theupper part of the reservoir, from which, by suitably-connected pipes, itis taken and applied to any desired use.

The heating-surface of the coils being very large, and their positionsuch that all the heat from the fire on the grate acts upon them,

steam is generated very rapidly and at a small expense for fuel.

Having thus described my invention, Iclaim and desire to secure byLetters Patent of the United States- The combination of the chamber K,forming a water-cell around the firepot, reservoir H, spiral coils L M,fuel-reservoir O, and the inverted conical tilting grate E, all arrangedand operating substantially as described, for the purpose set'forth.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in presence of two witnesses.

NELSON OOOMBS.

Witnesses:

HENRY WHITE, J. J. HOLDEN.

